Comfortmaker
Overcurrent / Electrical Short
Furnace frequently trips the household circuit breaker.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Shorted blower motor windings, Shorted inducer motor on Comfortmaker furnace, Damaged wiring harness, Incorrect breaker size or shared circuit overload
How to Fix / Troubleshooting
Safety: Do not repeatedly reset a tripping breaker. This is a fire hazard. Turn off the breaker and leave it off until the issue is found.
Steps:
- Inspect wiring: With power off, look for burned or pinched wires in the blower and inducer compartments.
- Isolate components: A technician can disconnect motors one at a time to identify the faulty component; homeowners should not energize with components disconnected unless instructed.
When to call a technician: Breaker trips indicate a serious electrical problem. Professional diagnosis is strongly recommended.
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Repair Difficulty
Professional Required
5/5
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